Automatic feed-hopper for nut-tapping and other machines.



E'. G. TYLER. AUTOMATIC FEED HOPPBR PoR N MACHINES.

UT TAPPING AND OTHER APPLICATION FILED JAN. 15, 1906.

Patented July 13, 1909.

J H m ATTESI. @l/M Towhomfi-t may concern.:

a citizen fa-1e United states,

FREDERICK C. TYLER, OF CLEVELAND, OHIO.l

' `A'lllOlZAl".IG FEEDLHOPPER FOB. NUT-TAFPING AD OTHER MACHINES.

`Specification of Letters Batexit.

Patented July 13. 1909.

.Application 'filed January 15, 1906. Serial No. 296,087.

it'known that I, FREDERICK O. TYLER,

residing at '(llecfelarld, in the county of Cuyahoga and .15 nuts to themachine,

' shown and described and Y to get such a feed when a hopper is run lowfeeding mechanism and Fig.- 2 is a side secproximately perfect feed forthe nut blanks consists of a substantially disk shaped part useful Imrovements in Automatic Feed- Hoppers or Nut-Tapping and other Machines,and do declare that the following is a full, clear, and exactdescription of the invention, which will enable others skilled in theart to which vit appertains to make and use the same. if

My invention relates to improvements in nut-tapping machines, andparticularly in the means for feeding the blanks or blank allsubstantially as particularlypointed State of Ohio, have inventedcertain newand out in the claims. l

In the accompany/mg drawings Figure 1 1s a cross sectional elevation o fmy improved tional elevation thereof atright angles to Fig. 1 and on aline corresponding to x, r, Fig. 1. Fig. 3 is a cross section on lineIy, Yy, Fig.`2, and Fig. 4 is a perspective view of the combined feedingdisk and agitator in detail.

The importance of having at least an ap- 1n a machine of this kind canscarcely be overstated, because there are so many dif-h cultiesencountered in providing a uniform and certain feed for heavy angularAobjects like these blanks, and Without- Which the best of tap ingmachines would be more or less of a fai ure. Thus, for example, it isone thing to get a sustained feed When a hopper is full of blanks, andquite a different thing or practically emptied. Obviously, also, anyconstruction to be universally acceptable must be adapted to meet boththese vconditions successfully, as Well as others arising in thedelivery of the blanks to the machine, such as providing againstanybanking up or blocking of the blanks in their travel to the machine.Tothese ends l construct a hopper A of the sha-pe substantially as shownwith a narrowed space at its bottom be! tween parallel side Walls a anda and from which there leads a preferably curved throat or outlet a2.

The feeding device D is located in t-he narrow space bet-Ween said Wallsa and a and D, having a. plain flat rear side provided with head 10.

a shank or stem d supported in a bearing at which the disk has a limitedrocking move# ment, and said device is further provided with a shoulder2 running in a straight line across its .front lower inner portion orside and a substantially V shaped notch 3 in its edge and top oppositesaid shoulder. A gage plate VC isinteiposed between the. said the bottomof hopper A and on on through i feeding device or disk D and Wall/zandis supported on or by adjusting screvvs c c through said Wall adapted'tofix the limits of the space laterally between said parts ac-I cordlng tothe thickness of the blanks and into which the nut blanks b are adaptedto drop edgevvise and temporarily rest on said ledge or rib 2preparatory to belng discharged into throat a?, as said disk or deviceis rotated, and approximately to positionas seen 1n Fig. 4. The extremeof rotationof the disk to the left is seen in Fig. 2, and the limit ofrotation or rocking thereof is equiva lent to about a quarter. of arevolution. When rotatlon occurs to dlscharge the blank it is toward theright, in which case the blanks accumulated on ledge 2 will be thrownedgewise into throat or passage a2 in the line of feed.

By reason particularly of notch 3 the disk operates as an agitator forthe blanks and as'4 sists in bringing the blanks into feeding relationsboth asv to the upper portion of the throat indicated by S through whichsome of the blanks are alined for feeding and also in relation to ledgeor shoulder 2 to which other blanks come through 4notch 3. also, theimmediate edge d" of notch 3 is somewhat below edge a* of the hopper,Which leaves a clear Way dovvn the side of the hopper onto ledge 2. Astrip G is laid in the throat or neck' of outlet passage af" and isadjustable by set screuv g to ix the size ot the throat according to thesize of the blank. Discharge spout H likewiseV is shown as astened byscrew g.

Power is communicated to disk D to rotate or rock the 'same thioughoperating connections comprising in this instance a crank arm gf rigidon shaft d, and tubular coupling J engaged at one end With said arm andinto which extends a. connecting rod L, having a A threaded nut or .cap12 is screwed inthe end of said coupling, and stili springs 13 and 14are operatively engaged With said rod on' opposite sides ,of its headand are of such .strength orstiffness that in ordinary operations theyserve to convey ro- To this end,

. tary power to disk D but if said disk be accidentally blocked againstrotation by a possible combination ,of the'V nut blanks or for `othercausey the said springs will yieldiand Furthermore, it

prevent breakage of parts, occurs if there be occasional blockingagainst rotation one way or the other, the opposite way will be foundfree, and then on the return stroke thev obstruction will be foundbroken because of the agitation ofthe entire mass u oi)blankswhich bringrelief to the congested corner, if this belthe cause of trouble, lwhichis probable. In this way two channels are provided forsupplying blanksto the machine, one into throat a2 through the openingY lower edge tofeed the blanks and at its top edge to `agitate the same;

2. Af-feed'f mechanism for articles of tablet form :having a .hopper1with a semicircular bottoni chamber and a discharge opening leadingtherefror1,.I and a rocking feeding device in said'charnber having astraight shoulder at it'slower edge and sideto carry the articlesdownward into said fdis-l charge opening.

'3. The hopper nut blanks, having a `bottom with parallel 'oppositeWalls and a discharge passage thereu from, vand a substantially diskshaped rocking device in saidspacehavingpa ledge on its i inner side to-carry blanks ,and constructed at l its top tovagitate theblanks aitheentrance tosaidspaoe. y v p., V4;. In a blank-nut feedinggmechanism, a

hopper having a-'disch'argei opening and af rotatable feed device at themouth of saidopening and .falaterall'y adjustable plate at' the sideofisaiddevice to the' Width of space between said parte for feedingblanks of differen'tthicknesses.V v

for. feeding articles, such as 5. The hopper yhaving parallelsidesati-its; bottom l and an outlet therefrom, injycombina tionwith a Yblankfeedingieviei' betmireeri4 said sides constructed iatits "top to agitatothe blanksin 'the hop er and rq'vided atits bottom'with a straig t shoulerto feed the? blanks to said outlet,land. means to give said device arocking' movement.

Y 6. Inablankfeeding mechanism, a hopper having a discharge passage inits bottom and a rotatable feed member having a lateral projectionthereon, fand 'a laterally. adjustable plate at the side of said memberto determine the Size of the blanks to b fed by Said-member through saidpassage.

7. -The hopper having a circular pocket in its bottom and a discharge,passage for the blanks open thereto at its side and open to f thehopper' at its top, in combination with 4an oscillating feedingandagitating device set into said hopper opposite said passageA andconstructed to carry blanks int-o both the top and side of vsaidpassage; v

8. A feeding 'mechanismcomp'rising agliyup4 per having adischargepassage'a'nd a rocking 'member disposed with' its edge theretoy andhaving a notch in onev edge and a straight vshouldered portionacross4its face from edge to edge7 and means to impart oscillating -movementto said member. y v i 9. The hopper and -an outlet 'passageopen thereto,a rocking disk 4projectingdnto said hopper and passage, and saddiskhaving a notched edge at its top anda shouldered portion at-itsbottom,;'l and means 'to rock said disk.y

10.' The hopper 'having-i a semi-circular chamber at its bottom andadisk mounted in' Saidham'ber having its upper edge notched and ro]ectingintoV said hopper and I provided wit astraight 'shoulder onvitsside face, andaldischarge,passage 'open to both said chamber andhopper. f

In testimonywhereof I sign this specifica- .'tion in the presence oftwowitnesses. 7

l l d j' 'rnnnnnronfe TYLER Witnesses: ,j

R. 3..,M0'SER, i

SELr".

